横向
1
Goods sold to another country
3
Largest river in South America
4
Dry land with little rainfall
5
Landform where river meets the sea
6
Low area between mountains
9
Mountain that can erupt with lava
10
Total number of people in an area
纵向
2
Large slow-moving mass of ice
3
Ocean between Americas and Europe/Africa
7
Where river meets the sea
8
Physical features of land